JPH08191842A - Operating microscope - Google Patents

Abstract

PURPOSE: To provide an operating microscope capable of easily bringing the whole of its mirror element to a sterilized state and taking no labor in the preparation before operation. CONSTITUTION: An operating microscope is constituted of a mirror element 1 equipped with an object lens 4 and eyepieces 5 and a cap capable of covering the whole of the mirror element 1 and made of a sterilizable rubber material. The protruding holding part 7 holding the cap is provided to the mirror element 1 and the attaching part fitted to the holding part 7 is provided to the cap.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical microscope used for microsurgery.

[0002]

2. Description of the Related Art In recent years, microsurgery has been frequently performed with the development of surgical techniques and surgical tools. In the microsurgery, a surgical microscope is used to magnify and observe the surgical site. The sterilization method of this surgical microscope is generally a method in which a drape that has been sterilized in advance is placed on the surgical microscope to make the outside thereof sterile.

Further, as a method of keeping a sterilized state of an operator by attaching a sterilized cap to an operation portion of a surgical microscope which an operator may operate during an operation, for example, USP5
A sterilization cap for lamp operation as shown in 036446 is known.

Further, conventionally, the drape shown in US Pat. No. 3,698,791 has been used to use a surgical microscope in a sterilized state. This is basically a deformable bag shaped like a surgical microscope and can cover the entire surgical microscope at a stretch.

Separately from this, a cover that can be sterilized by an autoclave or the like as shown in US Pat. No. 5,355,292 is inserted into each operation handle of the surgical microscope used during surgery,
The operator may keep only this part sterile.

Further, in order to eliminate excess slack after inserting the bag-shaped drape, Fi of US Pat. No. 3,698,791 is used.
The band designated g11 is used. Also, in order to separate unnecessary parts after insertion, USP 4045118 or U
A cutting line (USP4045118, FIG., Formed in a part of the drape shown in SP4561540.
3) is used.

Further, in recent years, as shown in Japanese Patent Laid-Open No. 6-196, the blind spot of a surgical microscope has been observed with an endoscope. Since the endoscope is inserted into the body cavity, it is sterilized separately from the surgical microscope. Therefore, when the surgical microscope and the endoscope are integrated as shown in FIG. 1 of JP-A-6-196, the tip of the objective lens of the endoscope is located in a part of the drape of the surgical microscope. It has a hole to expose it.

[0008] The drape is generally as described in USP 36987.
As shown in FIG. 91 of FIG. 91, it is folded in a number of layers and provided to the hospital, and then it is unfolded like a bag in the procedure of FIG. 3 to FIG. The inside of the bag, that is, the side that comes into contact with the surgical microscope when covered is touched by a dirty person, so it is folded so that this side is the outside.

Further, a cover flange 58 shown in FIG. 3 is provided on the cover as shown in USP 5355292 in order to make it difficult to touch an unclean portion when the operation handle is operated.

On the other hand, the drape of USP36998791 has the convenience that it can be covered all at once, but it is necessary to suppress the excess slack in various places like Fig11. The extra slack is an obstacle to the operation of the operator during the operation, or obstructs the visual field when the operator views the operating site with the naked eye.
It causes a decrease in surgery efficiency. However, if the place to hold down the drape is increased or the amount of hold down is increased, the relative movement part of the surgical microscope, for example, the movement of the arm for moving the microscope, is deteriorated and the original ability of the surgical microscope is reduced. There are some things that cannot be demonstrated.

Needless to say, it is a very troublesome task to suppress the movement of the relative motion unit while watching it. In addition, the operation of the surgical microscope of the part covered with the drape, for example, the interpupillary adjustment and manual zooming, is performed by grasping the operating portion via the drape, but between the surgical microscope and the drape. It causes slippage and reduces operability.

Since the drape of USP36998791 is in the shape of a bag, it is necessary to have a diameter that allows the maximum volume of the surgical microscope to pass through, and there is a large amount of extra slack. Further, in the band shown in the above-mentioned US Pat.
As described above, it is difficult to remove the slack, and the band may be displaced due to the operation of the relative movement part of the surgical microscope during the operation to increase the slack.

In addition, USP405118 and USP456
When the unnecessary portion is cut off by the 1540, unintentional force is applied to the surgical microscope at the time of cutting, so that the diopter adjusting ring of the eyepiece lens may be rotated to rotate the diopter, or even cause a malfunction.

If the drape is covered with the surgical microscope and the endoscope integrated, the bag-shaped inner side may be unclean as described above. Therefore, the endoscope is sterilized by itself. Filthy. In addition, the hole for exposing the tip of the objective lens of the endoscope may expose the surgical microscope at the same time, which reduces the certainty of sterilization.

The drape is usually made of clear vinyl for operating the surgical microscope therethrough. When folded in multiple layers, it is difficult to tell which is the inside and which is the outside, and even the parts that should be kept sterile may be unclean.

The cover shown in US Pat. No. 5,355,292 is provided with a cover flange for the above-mentioned reason, but the effect is such that the operator operates the operation handle without taking his eyes off the eyepiece lens when using the drape. Instead, the efficiency of surgery is reduced by keeping the eye away from the eyepiece.

[0017]

By the way, the drape is made larger than the surgical microscope in order to improve the wearability and not to interfere with the operability of the surgical microscope after the wearing. As a method of covering the drape with the surgical microscope and collecting the excess drape, a method of bundling the drape with a rubber or a string and fixing the drape to a support arm or the like of the surgical microscope is generally used.

However, when using the drape, it is necessary to allow a sufficient amount of drape so as not to interfere with the movable portion of the surgical microscope. With such a fixing method, the slack of the drape is actually manipulated while operating the surgical microscope. I had to adjust my condition and it took time to prepare before surgery. Furthermore, there is a problem that the slack of the drape hinders the operator's visual field and makes it easy to touch the dirt. In addition, the drape is disposable, and there is a problem that running costs are incurred.

Further, in the case of the sterilized cap as shown in the above-mentioned USP 5036446, the part other than the part covered with the cap is unclean, and there is a possibility that the operator accidentally touches the unclean part during the operation. Further, when operating a plurality of operating sections of a surgical microscope, a sterilization cap is required for each operating section, and it takes time to prepare before surgery. That is, both were difficult to use.

The present invention has been made by paying attention to the above-mentioned circumstances, and the purpose thereof is to make it possible to easily sterilize the entire mirror body, and to make preparations before surgery without any trouble. An object of the present invention is to provide a surgical microscope capable of reliably holding the cap on the mirror body.

[0021]

In order to achieve the above object, the present invention provides a mirror body, a sterilizable cap that can cover the whole or a part of the mirror body, and the cap provided on the mirror body. And a holding unit for holding the.

When a cap is attached to the mirror body and the mirror body is used in a sterilized state, an operator or an operator opens the cap that has been sterilized in advance and inserts the cap from above the mirror body. Furthermore, when the opening is closed while the cap is brought into close contact with the mirror body according to the shape of the mirror body, the holding hole provided in the mirror body is fitted with the mounting hole provided in the cap. Therefore, the entire mirror body is covered with the cap, and the cap is attached to the mirror body.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 to 7 show a first embodiment, and FIG.
Shows the overall configuration of the surgical microscope. Reference numeral 1 denotes a mirror body attached to an arm (not shown) that can be moved and fixed three-dimensionally, and is composed of a main body portion 2 and a lens barrel portion 3. An objective lens 4 is provided below the main body 2, and an eyepiece 5 is provided obliquely on the side of the lens barrel 3. On the left and right side surfaces of the main body 2 viewed from the operator 6,
A holding portion 7 having a substantially columnar shape is provided so as to project.

FIG. 2 shows the entire cap 8 that can be attached to the mirror body 1, which is made of an elastic material such as rubber that can be sterilized by autoclave. This cap 8
The internal shape of is substantially the same as that of the mirror body 1 and is a size capable of covering the mirror body 1 as a whole.
Inside the right and left side surfaces of the cap 8, there are provided mounting portions 9 having positions and sizes that can be fixed to the holding portion 7 when the cap 8 is mounted on the mirror body 1.

Further, an opening 10 is provided at the front of the cap 8 so that when the cap 8 is mounted on the mirror body 1, the cap 8 can be opened to such a size that the mirror body 1 can be mounted sufficiently. Has been. A brim (not shown) is provided on the entire periphery of the opening 10 so that the cap 1 can be closed after the cap 1 is mounted on the mirror 1 without being exposed.

Further, an eyepiece lens cover portion 11 which can be fitted into the eyepiece lens 5 is provided on the upper portion of the cap 8, and the lower portion of the cap 8 passes through the objective lens 4 when mounted on the mirror body 1. The objective window 12 is provided so as not to block the light flux that is generated.

Next, the structures of the holding portion 7 and the mounting portion 9 will be described with reference to FIGS. 3 and 4.

FIG. 3 shows the overall construction of the holding portion 7, and 13
Is a protrusion having a columnar shape, and a chamfer 13a for improving the insertability with respect to the mounting portion 9 is provided at the tip end thereof, and the base of the protrusion 13 further makes a round in the vicinity thereof. Thus, the annular groove 14 is provided.

FIG. 4 shows the overall structure of the mounting portion 9,
Is a mounting hole whose internal shape is substantially the same as that of the protrusion 13, and is formed in a size into which the protrusion 13 can be inserted and fitted. An annular convex portion 16 is provided at the opening edge of the mounting hole 15 so as to make a round around the entrance of the mounting hole 15. The inner diameter of the annular convex portion 16 is equal to that of the protruding portion 13.
Is smaller than the outer diameter and the width is smaller than the width of the annular groove 14, and the annular groove 14 and the annular convex portion 16 can be fitted to each other.

Next, the operation of the mirror body 1 and the cap 8 configured as described above will be described. First, when the cap 8 is attached to the body 1 and the body 1 is used in a sterilized state, as shown in FIG. 5, the operator 6 or the operator pre-sterilizes the opening 10 of the cap 8. In the opened state, the cap 8 is inserted from above the lens barrel 3.
Next, the eyepiece 5 is inserted into the eyepiece cover portion 11 while deforming the cap 8, and the eyepiece lens 5 and the eyepiece lens cover portion 11 are fitted to each other.

Further, the opening 10 is closed while keeping the cap 8 in close contact with the lens barrel 3 and the main body 2 in accordance with the shapes of the lens barrel 3 and the main body 2. Next, as shown in FIG. 6, the mounting portion 9 provided on the cap 8 is deformed to insert the protruding portion 13 into the mounting hole 15. Then, as shown in FIG. 7, the protruding portion 13 of the holding portion 7 provided in the mirror body 1 and the mounting hole 15 provided in the cap 8 are fitted. Further, by fitting the annular groove 14 and the annular convex portion 16 to each other, the entire lens body 1 is covered with the cap 8, and the cap 8 can be securely attached to the lens body 1.

According to the above-described embodiment, it is possible to implement by a simple structure in which the main body portion 2 constituting the mirror body 1 is provided with the holding portion 7 to which the cap 8 can be attached. By the way, the conventional sterilizable cap is attached only to the operation part, and it is difficult to sterilize the entire mirror body only with the cap. Further, in order to obtain the same effect as covering the entire mirror body, it is necessary to use a plurality of caps. However, as described above, the opening 1 is provided in the sterilizable cap 8 capable of covering the entire body 1.
0 is provided and is made of an elastic member such as rubber,
Since it can be opened wide when it is attached to the, it is very easy to attach. Further, since the cap 8 is integrally formed, workability is good, and there is an effect that no labor is required before surgery.

Further, in the present embodiment, the holding portion 7 and the mounting portion 9 are provided as means for fixing the main body portion 2 and the cap 8, respectively, but magnetic bodies having opposite poles are provided respectively. It goes without saying that the same effect can be obtained by this.

8 to 12 show a second embodiment, and the same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

FIG. 8 shows the overall structure of the surgical microscope. A diopter adjusting ring 18 is provided on the eyepiece main body portion 17 of the eyepiece lens 5. The diopter adjustment ring 18 is rotatable about the observation optical axis O ₁ of the eyepiece lens 5 with respect to the eyepiece main body 17 to move a part of the eyepiece lens 5 along the observation optical axis O _1. The diopter can be adjusted.

The body portion 2 of the mirror body 1 has an eyepiece lens 5, and an inclined lens barrel portion 19 that can change the angle of the eyepiece lens 5 with respect to the body portion 2 in the direction of arrow a is provided. Eye width adjustment knobs 20 of a well-known eye width adjustment mechanism corresponding to the holding portion of the present invention are provided on the left and right side surfaces of the tilted lens barrel portion 19 viewed from the operator 6. The eye width adjusting knob 20 is a cylindrical shape around axis the rotation axis O _2, by rotating the rotary shaft O ₂ around, and is capable of changing the distance between the eyepiece 5.

Further, similarly to the interpupillary adjustment knob 20, the variable magnification lens (not shown) built in the main body 2 is moved on the left and right side surfaces of the main body 2 by rotating around the rotation axis O _3. A variable magnification knob 21 corresponding to the holding portion of the present invention, which can change the observation magnification, is provided. The variable power knob 21 also has a cylindrical shape with the rotation axis O ₃ as the central axis. Further, the interpupillary distance adjusting knob 20 and the variable magnification knob 21 are each provided with a V-shaped groove 22 that goes around the outer circumference.

Next, the cap 23 attachable to the mirror body 1, that is, the main body portion 2 and the tilted barrel portion 19 will be described with reference to FIG. The cap 23 is made of a hard material capable of autoclave sterilization and a part of an elastic material such as rubber, and is composed of a left side cap 23a and a right side cap 23b. The cap 23 is provided on the mounting pin 24 provided on the right cap 23b and the left cap 23a,
When the cap 23 is mounted on the mirror body 1, a pin receiver 25 provided at a portion that abuts a relative position of the mounting pin 24.
It can be integrated by fitting with.

When the cap 23 is attached to the mirror body 1,
The body portion 2 of the cap 23 and the tilted barrel portion 19
A deformable bellows 26 made of an elastic material such as rubber is provided in a portion corresponding to the movable portion of the. Further, on the left and right side surfaces of the cap 23 seen from the operator 6, an eye width adjustment cap 27 made of a hard material that can be fitted to the eye width adjustment knob 20 provided on the tilted barrel portion 19 is provided. A variable power cap 28 made of a hard material that can be fitted to the variable power knob 21 is provided.

Next, the eyepiece lens cover portion 11 will be described with reference to FIG. Reference numeral 29 denotes a diopter adjustment cap. The diopter adjustment cap 29 has an inner circumference smaller than the outer circumference of the diopter adjustment ring 18 and is formed in an inner shape into which the diopter adjustment ring 18 can be fitted. A flange 30 is provided.

The diopter adjustment cap 29 is provided with an eyepiece window 31 through which the eyepiece lens 5 can be observed. Further, the diopter adjustment cap 29 is provided with a bellows 32 made of an elastic material such as rubber that can be deformed vertically, horizontally, and vertically with respect to the paper surface. A flange receiver 33 that holds the flange 30 to prevent the diopter adjustment cap 29 from falling off.
The flange receiver 33 holds the diopter adjustment cap 29 rotatably around the observation optical axis O ₁ of the eyepiece 5.

Next, the interpupillary distance adjustment cap 2 will be described with reference to FIG.
7 and the variable power cap 28 will be described. Since the interpupillary distance adjustment cap 27 and the variable power cap 28 have the same structure, only the interpupillary distance adjustment cap 27 will be described. A flange 34 is provided on the outer peripheral portion of the interpupillary distance adjustment cap 27. An O-ring 35 made of an elastic material such as rubber that can be fitted into the V-shaped groove 22 provided on the eye width adjustment knob 20 is adhered to the inner circumference of the eye width adjustment cap 27. The inner circumference is smaller than the outer circumference of the eye width adjustment knob 20. Further, the flange 34 is held on the cap 23, and the interpupillary adjustment cap 27 is rotatably held around the rotational axis O _{2 of the} interpupillary adjustment knob 20 with respect to the cap 23 so as to prevent the cap from falling off. 36 are provided.

Next, the operation of the lens body 1 and the cap 23 configured as described above will be described. First, when the cap 23 is attached to the mirror body 1 for use, the operator 6 or the operator disassembles the cap 23 into the left cap 23a and the right cap 23b and sterilizes them in advance. Next, for example, while deforming the bellows 32 of the eyepiece lens cover portion 11 with respect to the left-side cap 23a, the left-side cap 23a is inserted from above as seen from the operator 6 of the tilted barrel portion 19, and the diopter provided on the eyepiece 5 is adjusted. The adjusting ring 18 is fitted to the diopter adjusting cap 29 of the eyepiece lens cover 11.

Further, by deforming the bellows 32, the interpupillary adjustment caps 27 are fitted into the interpupillary adjustment knobs 20 provided on the left and right side surfaces of the tilted lens barrel section 19 as seen from the operator 6, and the interpupillary adjustment knobs 20 are provided. The V-shaped groove 22 and the O-ring 35 adhered to the interpupillary adjustment cap 27 are fitted. Similarly, operator 6
Seen from the above, the variable power caps 28 are fitted into the variable power knobs 21 provided on the left and right side surfaces of the main body 2, and the V groove 22 and the O
The ring 35 is fitted. As described above, the V-shaped groove 22 provided on the interpupillary distance adjustment knob 20 and the variable magnification knob 21 and the O-ring 35 provided on the interpupillary distance adjustment cap 27 and the variable magnification cap 28 are fitted to each other, so that the mirror The body 1 and the left cap 23a are integrated. The right-side cap 23b is also attached to the main body 2 and the tilted barrel portion 19 in the same procedure, and the mounting pin 24 provided on the right-side cap 23b after the lens body 1 and the right-side cap 23b are integrated.
By fitting the pin receiver 25 provided on the left side cap 23a, the left side cap 23a and the right side cap 23b are integrated, and the mirror body 1 can be covered by the cap 23 without being exposed.

Next, as preparations for the surgeon 6 to perform before the operation,
When the diopter adjustment cap 29 provided on the eyepiece lens cover part 11 for adjusting the diopter is rotated around the observation optical axis O _{1 with} respect to the cap 23, the diopter adjustment fitted in the diopter adjustment cap 29 is adjusted. By moving the ring 18 integrally with the eyepiece body 17, the diopter of the eyepiece 5 can be adjusted to the diopter desired by the operator 6. At this time, the diopter adjusting ring 18 moves along the observation optical axis O1 with respect to the eyepiece main body portion 17, and the eyepiece lens cover portion 11
The bellows 32 provided on the base plate is deformed.

Further, in order for the operator 6 to adjust the pupil distance,
The pupil distance adjustment cap 27 is rotated with respect to the cap 23 by the rotation axis O.
_When rotated _two times, the interpupillary distance adjustment knob 20 fitted in the interpupillary distance adjustment cap 27 integrally rotates with respect to the tilted lens barrel portion 19, so that the interval between the two eyepieces 5 can be adjusted.
Can be changed to a desired interval.

At this time, since the diopter adjusting cap 22 is fitted to the diopter adjusting ring 18 of the eyepiece 5 by the movement of the eyepiece 5 with respect to the tilted barrel portion 19, the moving direction of the eyepiece 5 is the same direction. Be moved to. Then, the flange receiver 33 holding the diopter adjustment cap 29 integrally moves and the bellows 32 is deformed.

Next, in order to incline the tilted barrel portion 19 with respect to the main body portion 2 in the direction of arrow a at an angle desired by the surgeon 6 during surgery, the surgeon 6 passes the cap 23 and tilts the barrel portion. 19 is held and tilted in a desired direction, and the cap 23 is integrated with the movable part of the main body 2 and the tilt lens barrel 19.
This is achieved by deforming the bellows 26 provided on the. In addition, when the operator 6 changes the observation magnification to a desired magnification, the variable magnification cap 28 is rotated around the rotation axis O _{3 with} respect to the cap 23, so that the variable magnification knob 21 and the variable magnification cap 28 have the V groove 22. This is achieved by rotating the variable power knob 21 with respect to the main body portion 2 integrally with the rotation of the variable power cap 28 by being fitted by the O ring 35.

According to the above-described embodiment, the sterilizable cap is provided by using the operation knob such as the interpupillary adjustment knob or the variable magnification knob normally provided in the surgical microscope as the mounting portion of the sterilizable cap. No special structure is required for mounting

By the way, since the conventional cap capable of autoclave sterilization does not have the movable part as described above, when the cap is attached to the mirror body having the movable part, the cap is attached to each movable part. To set up
Alternatively, there is only a method in which a cap is attached and used only for the operation portion that is actually operated and touched by hand during surgery.
However, as described above, the sterilizable cap 23 capable of covering the entire body 1 is provided with the bellows 26 and 32 made of an elastic member such as a deformable rubber, and is further provided on the body 1. By providing a cap that fits on the power adjusting ring 18, the interpupillary distance adjusting knob 20, and the magnification changing knob 21 and moves integrally, the lens body 1 having a movable portion can be operated and the entire lens body 1 can be operated. It can be operated in a sterile condition. Further, since the cap 23 is configured to be divided into two bodies, the left side cap 23a and the right side cap 23b, and the parts other than the movable part of the cap 23 are made of a hard material, they are self-supporting and very easy to wear, and the mirror body 1 The whole can be covered without exposed parts.

By the way, although the mounting pin 24 and the pin receiver 25 are used as a means for unifying the left cap 23a and the right cap 23b of the cap 23, they may be magnetic bodies having opposite poles, or as shown in FIG. Needless to say, the same effect can be obtained by providing the left cap 23a and the right cap 23b with engaging claws 36 that can be engaged with each other, as shown in FIG.

FIGS. 13 and 14 show the third embodiment. The same components as those in the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted.

FIG. 13 shows the overall structure of the surgical microscope. A first electromagnetic coil 37 corresponding to a holding portion of the present invention capable of generating a magnetic force in the outside of the tilted barrel portion 19 inside the left and right side surfaces of the tilted barrel portion 19 when viewed from the operator 6. Is provided. Further, like the first electromagnetic coil 37, a second electromagnetic wave corresponding to the holding portion of the present invention capable of generating a magnetic force inside the left and right side surfaces of the main body portion 2 in the external direction of the main body portion 2. Coil 38
Is provided.

Further, an objective lens frame 39 of an objective lens (not shown) is provided below the main body 2, and
The electromagnetic coil 37 and the second electromagnetic coil 38 of the
Alternatively, an operator or the like can freely turn on / off the generation of magnetic force by operating a switch or the like (not shown).

Next, referring to FIG. 14, an upper cap 40 which can be attached to the body 1 composed of the main body 2 and the tilted barrel portion 19.
The cap 40 including the a and the lower cap 40b will be described. The upper cap 40a is formed of a hard material that can be sterilized by autoclaving and a part of an elastic material such as rubber. The tilted barrel portion 1 is provided below the upper cap 40a.
9 is provided with an opening 41 having a size that can be sufficiently mounted, and the internal shape thereof is substantially the same as that of the tilted barrel portion 19.

Further, the upper cap 40a is attached to the tilted barrel portion 1
When it is mounted on the body 9, a bellows 42 made of an elastic material such as deformable rubber is provided at a portion corresponding to the movable portion of the main body 2 and the tilted barrel portion 19. Furthermore, inside the upper cap 40a, the upper cap 40a is attached to the tilted barrel 1
The first adsorbing portion 43 made of a metal material that can be adsorbed to the tilted lens barrel portion 19 by the magnetic force at a position where the magnetic force generated by the first electromagnetic coil 37 can be received when mounted on the tilting barrel 9. Is provided.

The lower cap 40b is made of a hard material that can be autoclaved. An opening 44 having a size large enough to be attached to the main body 2 is provided on the upper portion of the lower cap 40b, and the internal shape is formed to be substantially the same as the main body 2.

Inside the lower cap 40b, when the lower cap 40b is attached to the main body portion 2, the magnetic force attracts the main body portion 2 at a position where the magnetic force generated by the second electromagnetic coil 38 can be received. The second adsorption portion 45 made of a metal material that can be used is provided.
Under the lower cap 40b, an objective lens cover portion 46 having a shape and size that can be fitted into the objective lens frame 39 provided on the main body portion 2 is provided.

The magnitude of the magnetic force generated by the first and second electromagnetic coils 37, 38 and the attraction force between the mirror body 1 and the upper and lower caps 40a, 40b obtained by the magnetic force is determined by the main body 2 and the tilted mirror. The size is such that a sufficient suction force can be obtained so that the upper and lower caps 40a and 40b do not fall even if the tubular portion 19 is inclined at any angle. Further, the length of the bellows 42 of the upper cap 40a is such that a part of the lower cap 40b can be covered.

Next, the operation of the mirror body 1 and the upper and lower caps 40a and 40b configured as described above will be described. First, the sterilizable upper and lower caps 40a, 40b are attached to the body 1 including the main body 2 and the tilted barrel portion 19.
When the endoscope 1 is mounted and the mirror body 1 is used in a sterilized state, the operator 6 or an operator operates a switch or the like (not shown) in advance to generate the magnetic force of the first electromagnetic coil 37 and the second electromagnetic coil 38. With the off state, the pre-sterilized upper cap 40a is inserted through the opening 44 of the upper cap 40a from above the tilted lens barrel 19 as seen from the operator 6.
The eyepiece 5 is fitted to the eyepiece cover portion 11.

Next, the operator 6 operates a switch or the like (not shown) to generate the magnetic force of the first electromagnetic coil 37, and the first attracting portion 43 is tilted by the magnetic force generated by the first electromagnetic coil 37. The upper cap 40a and the tilted lens barrel portion 19 are integrated by adsorbing the lens barrel portion 19.

When the lower cap 40b is attached to the main body 2, the lower cap 40b is sterilized in advance.
Is inserted from below the main body 2 through the opening 44 as seen from the operator 6, and the objective lens frame 39 and the objective lens cover 46 are fitted. Furthermore, the operator 6 or the operator operates a switch or the like (not shown) to generate a magnetic force of the second electromagnetic coil 38, and the second attraction unit 45 is generated by the magnetic force of the second electromagnetic coil 38 to cause the main body 2 to move. By adsorbing
The lower cap 40b and the main body 2 are integrated.

Further, when the tilted barrel portion 19 is tilted with respect to the main body portion 2 at an angle desired by the operator 6 during surgery,
The surgeon 6 holds the tilted barrel portion 19 through the upper cap 40a, tilts the tilted barrel portion 19 to a position desired by the surgeon 6, and the bellows provided on the upper cap 40a made of an elastic material such as rubber. This is achieved by the deformation of 42.

Further, after the operation is completed, the upper cap 40a
When removing the lower cap 40b and the lower cap 40b from the body 1, the operator 6 or the operator operates a switch or the like (not shown) to turn off the magnetic force generated by the first and second electromagnetic coils 37, 38. This is achieved by eliminating the suction force between the first and second suction portions 43, 45 and the tilted barrel portion 19 and the main body 2.

According to the above embodiment, the first and second electromagnetic coils 37, 3 are provided inside the main body 2 and the tilted barrel portion 19.
8, a surgeon 6 or an operator can freely turn on and off the magnetic force generated by a switch or the like, so that the upper cap 40a and the lower cap 40b can be sterilized.
Can be easily attached and detached.

In addition, the first and second electromagnetic coils 37, 3
The upper cap 40a and the lower cap 40b can be surely held by the attraction force by the magnetic force generated by 8. Further, since it is not necessary to provide a mounting portion for mounting the upper cap 40a and the lower cap 40b on the outer surfaces of the main body 2 and the tilted barrel portion 19, the main body 2
Also, the appearance of the tilted barrel portion 19 can be simplified and cleaning is easy.

Further, the bellows 42 made of an elastic material such as rubber for the upper cap 40a and the lower cap 40b, which can cover the entire sterilizable body 1, is attached to the upper cap 40a.
The cap 40 can be easily and inexpensively manufactured and can be easily attached / detached to / from the mirror body 1 by being assembled into two and having a simple shape. In addition, when the cap 40 is attached to the mirror body 1, the boundary between the two upper caps 40a and the lower cap 40b is covered by the bellows 42 provided on the upper cap 40a and made of an elastic material such as rubber. Part to body 2
Alternatively, the tilted barrel portion 19 is not exposed.

Further, in the present embodiment, the cap 40
On the other hand, the first and second electromagnetic coils 37 and 38 are used to obtain the attraction force, but by using them as permanent magnets, it is possible to make them at a lower cost.

FIGS. 15 to 20 show a fourth embodiment,
The same components as those of the first to third embodiments are designated by the same reference numerals and the description thereof will be omitted. FIG. 15 shows the overall configuration of the mirror body 1. Adapter parts 47 are provided on the left and right side surfaces of the body part 2 of the mirror body 1 when viewed from the operator 6. The adapter part 47 can divide and emit the observation optical path guided from the observation focus P to the eyepiece lens 51, and an auxiliary observation device such as an assistant can be attached. A well-known assistant observation device 48 is detachably attached to the adapter portion 47.

A diopter adjustment ring 50 is provided on the eyepiece main body 49 of the assistant observation device 48, and the diopter adjustment ring 5 is provided.
The diopter can be adjusted by rotating 0 about the rotation axis O _{4 with} respect to the eyepiece main body 49. Further, an eyepiece lens 51 whose observation optical axis is the rotation axis O ₄ and a known image rotator mechanism capable of rotating an observation image from the eyepiece lens 51 around the rotation axis O _{4 with} respect to the observation surface of the eyepiece lens 51. (Not shown) is built in, and the rotator ring 52 is attached to the rotation axis O with respect to the assistant observation device 48.
_The image rotator mechanism can be driven by rotating it around ₄ .

Reference numeral 53 is a mounting groove provided around the outer circumference of the lens barrel portion 3 and corresponding to the holding portion of the present invention.
Reference numeral 54 is a mounting groove which is provided at two vertical positions on the back surface of the main body 2 as viewed from the operator 6, and which corresponds to the holding portion of the present invention.

Referring to FIG. 16, the main body portion 2 and the lens barrel portion 3 are
The cap 55 including the upper cap 55a and the lower cap 55b that can be attached to the mirror body 1 will be described. The upper cap 55a is formed of an elastic material such as rubber that can be autoclaved. An opening 56, which is large enough to be attached to the lens barrel portion 3, is provided in the lower portion of the upper cap 55a, and the internal shape is the lens barrel portion 3.
And is formed in substantially the same shape.

In the vicinity of the opening 56 of the upper cap 55a, a protrusion 57 which can be fitted into the mounting groove 53 provided on the outer periphery of the lens barrel 3 is provided. Similarly, lower cap 5
5b is formed of an elastic material such as rubber that can be autoclaved. A plurality of metal plates 58 made of a flexible material are inserted into the lower cap 55b so that the lower cap 55b and the lower cap 55b can be integrally deformed.

The size of the lower cap 55b is large enough to cover the entire circumference of the main body 2. Further, the lower cap 55b is provided with a storage portion 59 having an internal space in which the adapter portion 47 can be stored, and a cover portion 60 that can be attached to the assistant observation device 48. .

Protrusions 61 are provided at two locations on the opposite side of the accommodating portion 59 of the lower cap 55b and the cover portion 60 from the protruding direction, and these protrusions 61 are respectively provided in the mounting grooves 54 provided in the main body 2. Can be attached.

The mounting grooves 53 and 54 and the protrusions 57 and 61 will be described with reference to FIG. Since the mounting structures of the mounting groove 53 and the protruding portion 57 and the mounting groove 54 and the protruding portion 61 are the same, only the mounting groove 53 and the protruding portion 54 will be described. FIG. 17 shows the sectional shape of the mounting groove 53 and the protruding portion 57. As shown in FIG. 17, the sectional shape of the mounting groove 53 is such that the width is wider from the middle in the depth direction of the groove to the bottom. In addition, the cross-sectional shape of the protrusion 57 is wide from the middle of the height direction of the protrusion to the tip of the protrusion, and is substantially the same shape as the mounting groove 53. The size relationship between the protrusion 57 and the mounting groove 53 is substantially the same.

The cover portion 60 to which the assistant observation device 48 can be attached will be described in detail with reference to FIG. Lower cap 5
5b is provided with a base portion 62 which is integrally formed and has an internal shape and size capable of sufficiently inserting the assistant observation device 48. The base portion 62 is provided with a first cover portion 63 which is partially integrated with the base portion 62 and is tiltable with respect to the base portion 62 as shown in FIG. further,
A leaf spring (not shown) is provided inside the first cover portion 63.
Has been inserted.

In addition, the assistant observation device 48 is attached to the base portion 62.
Has a mounting hole 62a through which a part of the mounting hole 62a can pass, and when the first cover portion 63 is not inclined with respect to the base portion 62, the mounting hole 62a is not completely exposed to the outside by the first cover portion 63. It is composed. First cover portion 63
A second cover portion 64 is rotatably attached to the tip of the second cover portion 64, and a leaf spring is similarly inserted in the second cover portion 64.

Further, a third cover portion 67 having a deformable bellows 65 and an eyepiece lens cover portion 66 is attached to the tip end portion of the second cover portion 64.
Similarly, a leaf spring is also inserted in 7. Further, the inner shape of the eyepiece lens cover portion 66 is substantially the same as that of the eyepiece lens 51, and has an inner circumference smaller than the outer circumference of the diopter adjustment ring 50, so that it can be fitted into the diopter adjustment ring 50. It is the size that can be.

The first cover portion 63, the second cover portion 64, and the third cover portion 67 each have an opening 68 provided in the respective rotation axis directions. Also,
The opening 68 is provided with a collar (not shown) that allows the assistant observation device 48 to be closed without being exposed when the assistant observation device 48 is attached.

The first cover portion 63, the second cover portion 64, the second cover portion 64 and the third cover portion 6 will be described with reference to FIG.
The rotatable connecting portion with 7 will be described. The first cover portion 63 and the second cover portion 64 have the same configuration and the second cover portion 64 and the third cover portion 67 have the same configuration. Therefore, the first cover portion 63 and the second cover portion 67 have the same configuration. Only the connection with 64 will be described.

A flange portion 69 is provided at an end portion of the second cover portion 64, and a flange receiver 70 for rotatably holding the flange portion 69 is provided at an end portion of the first cover portion 63. There is. First cover portion 63 and second cover portion 64
And are rotatably held by a flange portion 69 and a flange receiver 70.

Next, the operation of attaching the cap 55 to the mirror body 1 will be described.

First, the upper cap 55a and the lower cap 5 which can be sterilized on the body 1 including the main body 2 and the lens barrel 3 are provided.
When the surgeon 6 uses the endoscope 1 in a sterilized state by wearing the lens 5b, the surgeon 6 or an operator views the upper cap 55a that has been sterilized in advance from the surgeon 6 and above the lens barrel 3. The eyepiece 5 and the eyepiece lens cover 11 are fitted while the upper cap 55a made of an elastic material such as rubber is deformed.

Further, the projection 57 is deformed and fitted into the mounting groove 53, and the lens barrel 3 and the upper cap 55 are inserted.
Integrate with a. Next, when the lower cap 55b that has been sterilized in advance is attached to the main body part 2, the assistant observation device 48 is attached to the base portion 62 provided on the lower cap 55b.
Then, the eyepiece 51 is inserted into the mounting hole 62a. At this time, the first cover portion 63 is tilted with respect to the base portion 62.

Further, the opening 68 provided in each of the first cover portion 63, the second cover portion 64 and the third cover portion 67 and the inserted leaf spring are deformed to open the opening portion 6.
8 is opened and attached to the assistant's observation device 48, and the bellows 65
The eyepiece lens cover portion 66 provided on the third cover portion 67 is attached to the diopter adjustment ring 5 of the eyepiece lens 51 while deforming
Fit to 0. Next, one of the protrusions 61 provided on the lower cap 55b is deformed and fitted into the mounting groove 54 provided on the main body 2.

Further, the metal plate 58 inserted into the lower cap 55b is deformed while conforming to the shape of the main body portion 2, the adapter portion 47 is accommodated in the accommodating portion 57, and the remaining protruding portion 61 is deformed and attached. The main body 2 and the lower cap 55b are integrated by fitting into the groove 54.

Next, as preparations for the surgeon 6 to perform before the operation,
In order to adjust the diopter of the eyepiece lens 51 provided in the assistant's observation device 48, the eyepiece lens cover portion 66 provided in the cover portion 60 is rotated with respect to the second cover portion 63 about the rotation axis O ₄ . And the diopter adjustment ring 50 provided on the eyepiece lens 51 fitted to the eyepiece lens cover portion 66 integrally rotate with respect to the eyepiece main body portion 49, so that the diopter eyepiece has a desired diopter of the operator 6. The diopter of 51 can be adjusted. At this time, the diopter adjustment ring 50 moves along the rotation axis O ₄ with respect to the eyepiece main body 49, but the bellows 65 provided on the third cover 67 deforms.
The diopter adjustment ring 50 and the eyepiece lens cover section 66 are always integrated. Next, in order for the surgeon 6 to rotate the observation image from the eyepiece lens 51 around the rotation axis O ₄ during the surgery, the surgeon 6 passes through the second cover portion 64 and the assistant observation device 4
When the rotator ring 52 provided in 8 is rotated with respect to the assistant observation device 48, the second cover portion 64 is rotated with respect to the first cover portion 63 and the third cover portion 67 at the same time as the rotation of the rotator ring 52. To be achieved.

According to the above-described embodiment, it is possible to implement by a simple structure in which the mounting groove 53 is provided in the lens barrel portion 3 and the mounting groove 54 is provided in the main body portion 2. By the way, when a conventional sterilizable cap is made of a large elastic material, its shape is not stable and it is difficult to attach it, and further, it cannot be attached to an object to be attached. However, as described above, by inserting the metal plate 58 into the sterilizable lower cap 55b that can cover the entire main body 2 that constitutes the mirror body 1, the lower cap 55b is deformed into a shape that facilitates sterilization. The lower cap 55b and the metal plate 58 can be deformed in accordance with the shape of the main body 2 so that the main body 2 can be brought into close contact with the main body 2.

Further, each cover portion of the cover portion 60 which can be attached to the assistant's observation device 48 is provided with an opening 68 which can be made large when a leaf spring is inserted and attached to the assistant's observation device 48. By providing it, it can be easily attached to the assistant's observation device 48, and the cover portion 60 can be brought into close contact with the assistant's observation device 48.

Further, in the present embodiment, the metal plate 58 inserted in the lower cap 55b is made of a shape memory alloy, and is deformed into a shape that can be easily mounted after sterilization at high temperature during sterilization, and is normally used. Body part 2 at the time of temperature
Alternatively, the shape may be memorized so as to be deformed into the shape of the lens body 1 including the lens barrel portion 3, and the lens body 1 may be retained by the self-tightening force.

21 to 23 show a fifth embodiment.
Reference numeral 71 shown in FIG. 21 shows the overall structure of a sterilizing drape which can be sterilized and can be covered with a mirror body portion of a surgical microscope to be described later. This sterilized drape 71 is made of a deformable vinyl or cloth soft material in a portion where the external shape as the movable part of the surgical microscope can change when the sterilized drape 71 is attached to the surgical microscope. A plurality of cap portions 73, 74, and 75, which have the same internal shape as that of the surgical microscope and are made of an elastic material such as rubber, are formed in the deformed portion 72 and a portion other than the portion whose appearance shape can be changed. It consists of

The deformed portion 72 of the sterilized drape 71 is provided with an opening portion 76 having a size large enough to mount a surgical microscope. The cap portion 73 is provided with an objective window 77 at a position where it does not block the observation light flux when it is attached to the surgical microscope. Similarly, the cap portions 74 and 75 are provided with eyepiece windows 78 for guiding the light flux emitted from the surgical microscope to the operator without blocking the light flux.

FIG. 22 shows the structure of a surgical microscope to which the sterile drape 71 is attached. Reference numeral 79 is a microscope attached to an arm (not shown) that can be moved and fixed three-dimensionally, and this microscope 79 emits from a mirror body section 80 that incorporates an objective lens and a variable power optical system. It is composed of an intermediate lens barrel section 81 and two eyepiece tube sections 82 that divide the observation light beam into two.

The intermediate barrel portion 81 is different from the barrel portion 80 in
The assistant intermediate lens barrel portion 83, which is rotatably held around the optical axis O ₅ from the object to the objective lens, and the assistant intermediate lens barrel portion 83, is rotatably held around the optical axis O _5. The intermediate lens barrel portion 84 for the surgeon. The eyepiece tube portion 82 is rotatably held about the rotation axes O ₆ and O _{7 with} respect to the operator intermediate lens barrel portion 84 and the assistant intermediate lens barrel portion 83, respectively. The eyepiece tube portion 82 is composed of an eyepiece 85, a main body portion 86, and a mounting portion 87, and the main body portion 86 is configured to be rotatable with respect to the mounting portion 87 about rotation axes O ₈ and O ₉ . .

With the above configuration, when the sterile drape 71 is attached to the surgical microscope and the microscope 79 is used in a sterilized state, the opening 76 of the sterile drape 71 that has been sterilized in advance is opened. The microscope 79
The sterile drape 71 is inserted through the opening 76 from below. Next, the cap portion 73 is inserted into the mirror body portion 80, and is fixed to the mirror body portion 80 by the elastic force of the cap portion 73.

Further, the cap portions 74 and 75 are inserted into the eyepiece tube portion 82, and similarly fixed by the elastic force of the cap portions 74 and 75. The cap portions 73, 74 and 7
Reference numeral 5 has the same shape as that of the mirror body portion 80 and the eyepiece tube portion 82, and an object window 77 and an eyepiece window 78 provided on the cap portions 73, 74 and 75 are not shown provided on the mirror body portion 80. It can be attached so as not to block the light flux passing through the objective lens and the eyepiece lens 85.

During operation, the surgeon can use the cap portion 74 or 75.
The eyepiece tube 82 is held through the optical axis O of the microscope 79.
_{When the} eyepiece tube portion 82 is moved around ₅ and the rotation axes O _{6 to} O ₉ , the deforming portion 72 is deformed, and the eyepiece tube portion 82 is moved.
Can be moved to a position desired by the operator.

According to the above-described embodiment, since the deformable portion 72 and the non-deformable cap portions 73, 74 and 75 are integrally formed, the mounting is easy and the conventional drape alone is used. The extra slack in the drape can be eliminated. Furthermore, the non-deformable cap portion 73,
Since the elastic deformation of the cap portions 73, 74 and 75 is used as the fixing means of 74 and 75 to the microscope 79, it is not necessary to provide a dedicated attaching means to the conventional surgical microscope.

Further, by making the sterilization drape 71 a material that can be re-sterilized, the running cost can be suppressed as compared with a disposable item. Further, as shown in FIG. 23, the opening 76 provided in the deformable portion 72 is a well-known fastener mechanism 88 capable of making the opening 76 large when mounted and making the opening 76 small after mounting.
The mountability is better and the microscope 7 of the deformable portion 72 after the mount is installed.
It is possible to reduce the slack with respect to 9, and the deforming portion 7
There is an effect that it is possible to prevent the obstruction of the surgery due to 2.

24 to 33 show a sixth embodiment,
The same components as those in the fifth embodiment are designated by the same reference numerals and the description thereof will be omitted.

FIG. 24 shows a drape 89 which can be attached to the microscope 79. As in the conventional case, the drape 89 is made of vinyl or the like, is extremely thin and deformable, and is sterilized and sterilized in advance. However, in the conventional drape, a cuttable portion such as a perforation is provided in a portion to be attached to the eyepiece lens 85, but the drape 89 used in this embodiment does not need the cutable portion.

A sterilization cap 90 which can be attached to the microscope 79 will be described with reference to FIG. The sterilization cap 90 is a separate body from the drape 89, and has an internal shape of the mirror body portion 80.
It is made of a material such as non-deformable plastic having substantially the same shape as the above.

A pair of deformable claws 91 having an elastic force are provided on both side edges of the sterilization cap 90. Further, the sterilization cap 90 is provided with an objective window 92 that does not block the light flux passing through the objective lens provided in the mirror body portion 80 when mounted on the mirror body portion 80.

Further, as shown in FIG. 26, a taper portion 93 is provided on the inner peripheral side of the sterilization cap 90 at the entire peripheral edge of the objective window 92 so as to function as a cutter. Further, inside the sterilization cap 90, there is provided a storage section 94 capable of storing an extra drape 89 when the sterilization cap 90 is mounted on the mirror body section 80.

Returning to FIG. 25, reference numeral 95 is also a separate body from the drape 89, and is a sterilization cap made of a non-deformable plastic or the like having the same internal shape as the eyepiece tube portion 82. A claw portion 96 having an elastic force is provided on a side edge portion of the sterilization cap 95.

Reference numeral 97 denotes a sterilization cap made of a material such as a cylindrical non-deformable plastic whose internal shape is the same as that of the eyepiece lens 85. As shown in FIG. 27, one end of the sterilization cap 97 has a cutter. The tapered portion 98 is provided so as to fulfill the role of.

FIG. 28 shows a mirror body portion 80 and an eyepiece tube portion 82 to which the sterilization caps 90, 95 and 97 can be attached. The structure other than the portion shown in FIG. 28 is the same as that of the first embodiment shown in FIG. Since the configuration is the same as that shown, the description is omitted. Holding parts 99 are provided on two side surfaces of the mirror body part 80, and when the sterilization cap 90 is mounted on the mirror body part 80, the holding parts 99 are elastically engaged with the claw parts 91 provided on the sterilization cap 90. It holds the sterilization cap 90 and is arranged at a position facing the claw portion 91.

In addition, the holding portion 10 is provided in the eyepiece tube portion 82.
0, and the sterilization cap 95 is attached to the eyepiece tube portion 82.
When attaching the, the claw portion 96 provided on the sterilization cap 95
The sterilization cap 95 is elastically engaged with the sterilization cap 95 and is disposed at a position facing the claw portion 96.

FIG. 29 shows a sectional shape of an eyepiece lens 85 provided in the eyepiece tube portion 82. A groove 101 is provided in the eyepiece lens 85 so as to go around the vicinity of the base of the eyepiece lens 85. A similar groove (not shown) is also provided on the outer circumference of the objective lens provided on the mirror body portion 80. The size of the groove 101 is the same as the taper portion 98 provided on the sterilization cap 97, and the groove on the outer periphery of the objective lens provided on the mirror body portion 80 is provided on the sterilization cap 90. The same as the tapered portion 93.

Since the method of mounting the drape 89 described above is the same as that of the conventional drape, the description thereof will be omitted. All the following work is performed with the drape 89 attached. FIG.
As shown in 0, after mounting the drape 89 on the microscope 79, the sterilization cap 95 is oriented in the direction of the claw portion 96 provided on the sterilization cap 95 and the direction of the holding portion 100 provided on the eyepiece tube portion 82. The sterilization cap 95 is inserted into the eyepiece tube portion 82 so that Then, the claw portion 96 elastically deforms to enter the holding portion 100, and the sterilization cap 95 is fixed to the eyepiece tube portion 72.

Next, as shown in FIG. 31A, the cap 97 is inserted over the drape 89 with respect to the eyepiece 85.
Is inserted from the taper portion 98 side. Then, FIG. 31 (b)
The groove 1 provided in the eyepiece lens 85 as shown in FIG.
01 and the sterilization cap 97, the drape 89 is sandwiched between the sterilization cap 97 and the sterilization cap 97, and the taper portion 98 provided on the sterilization cap 97 serves as a cutter.
Is cut and a part of the cut drape 89 is removed, so that the observation optical path guided from the eyepiece lens 85 to the operator is secured.

Next, as shown in FIG. 32, when the sterilization cap 90 is attached to the mirror body portion 80, the excessively loose drape 89 is gathered under the mirror body portion 80 and the sterilization cap 90 is removed. It is attached to the mirror body part 80. Then, the claw portion 91 provided on the sterilization cap 90 elastically deforms to enter the holding portion 99 provided on the body portion 80, and the sterilization cap 90 and the body portion 80 are fixed. At this time, as shown in FIG.
The extra drapes 89 collected in the lower part of 0 are stored in the storage portion 94 provided in the sterilization cap 90.

Further, similarly to the case where the sterilization cap 97 is attached, the taper portion 93 provided on the outer periphery of the objective window 92 is provided.
The drape 89 is sandwiched between a groove provided on the outer circumference of the objective lens of the mirror body portion 80, and the drape 89 is provided by the taper portion 93 provided on the outer circumference of the objective window 92 and serving as a cutter. The body portion 80 is cut by removing a part of the cut drape 89.
A light flux passing through the objective lens provided in is secured.

According to the above-described embodiment, the deformable drape 89 and the non-deformable sterilization caps 90, 95 and 97 are provided separately, so that the conventional drape can be used as it is. In addition, an extra drape 89 is conventionally used by using a rubber band or the like and the body portion 80 and the eyepiece tube portion 8 are provided.
Although it was in close contact with 2, the use of the non-deformable sterilization caps 90, 95 and 97 makes it possible to surely suppress the extra slack of the drape 89 regardless of who wears it. Further, since the sterilization caps 90 and 97 are provided with a means for breaking the drape 89, the work for breaking the drape 89 is easy. There is no risk of accidentally breaking the drape when attaching the drape to the microscope.

FIG. 34 shows the seventh embodiment, and the same components as those in the fifth and sixth embodiments are designated by the same reference numerals and the description thereof will be omitted. 102 is the sterilization cap 90 of the sixth embodiment.
This is a sterilization cap corresponding to
2 holds a surgical instrument 104 used in surgery.
A holding portion 103 having a holding hole 105 that can be fixed is provided.

With the configuration described above, after the sterilization cap 102 is fixed to the microscope body portion 80 of the microscope 79 by the same method as in the sixth embodiment, the surgical instrument 104 used by the operator other than the microscope 79, for example, It is possible to insert an endoscope that has been sterilized by another method into the holding hole 105 and fix the endoscope to the sterilization cap 102, that is, to fix the endoscope to the microscope 79 as well. it can.

Therefore, taking advantage of the fact that the sterilization cap 102 is securely fixed to the mirror body portion 80 of the microscope 79, and the holding portion 103 for holding the surgical instrument 104 is provided on the sterilization cap 102, another The surgical instrument 104, which has been sterilized by the method, can be fixed to the microscope 79 without becoming unclean.

35 and 36 show the eighth embodiment, and the same components as those of the fifth, sixth and seventh embodiments are designated by the same reference numerals and the description thereof will be omitted.

FIG. 35 shows a drape 106, which is formed of an extremely thin and deformable pre-sterilized cylindrical bag. This drape 106
An opening 107 is provided in the. 36 shown in FIG.
Reference numeral 8 denotes an annular storage member having a cylindrical cross-sectional shape of the drape 106, which has been sterilized and sterilized in advance, and has a storage portion 109 which can be folded and stored with the drape 106 having the opening 107 open. Opening 1 of the drape 106
The size of 07 and the opening 110 of the annular housing member 108 are formed to be large enough to cover the microscope 79.

With the above-described structure, when the drape 106 is attached to the microscope body 80 of the microscope 79 and the microscope 79 is used in a sterilized state, the operator or the operator installs the annular storage member 108. It is held and put into the inside of the drape 106 through the annular storage member 108, that is, the opening 107 of the drape 106 from a mirror body portion 80 of the microscope 79 to a three-dimensionally movable / fixable arm. Then, as in the sixth embodiment, the sterilization cap 9
Attach and fix 0, 95 and 97.

Therefore, since the deformable drape 106 forms a simple cylindrical bag-like body, and the drape 106 is housed in the annular housing member 108 having a cylindrical bag-shaped cross section, the drape 106 is placed outside when mounted. It is easy to discriminate between the inner side and the mounting itself is very good because the annular housing member 108 is simply passed through the microscope 79.

37 to 40 show a ninth embodiment,
The same components as those in the fifth to eighth embodiments are designated by the same reference numerals and the description thereof will be omitted.

37 and 38 show the overall construction of this embodiment. Reference numeral 111 denotes a variable-magnification knob mounting hole provided on the side surface of the mirror body 80. This scaling knob mounting hole 111
A knob 112 made of a material such as plastic that can be repeatedly sterilized and sterilized is detachably provided in the.

The variable-magnification knob mounting hole 111 and the knob 112 will be described with reference to FIG. 39. Reference numeral 113 indicates the interior of the mirror body portion 80 by rotating the lens body portion 80 around the rotation axis O _10. This is a cylindrical tube in which the magnification of observation can be changed by moving a variable power lens (not shown) provided in the.
Inside the cylindrical tube 113, a notch 114 parallel to the rotation axis O ₁₀ is provided, and the notch 11
A step 115 is further provided in a part of 4.

Next, the knob 112 that can be attached to the variable magnification knob attachment hole 111 will be described. Reference numeral 116 denotes a knob portion made of a material such as plastic that can be repeatedly sterilized and sterilized. The knob portion 116 has a cylindrical outer shape, and a gap 117 between the mirror body portion 80 and the cylindrical tube 113.
It has a structure that can be freely fitted. Also, the picking portion 11
An elastically deformable claw portion 118 having the same shape as the cutout portion 114 is provided inside the member 6 at a position facing the cutout portion 114. A protrusion 119 having the same shape as the step 115 provided in the notch 114 is provided at the tip of the claw 118. The knob 116 is provided with a button 120 that elastically deforms the claw 118 in the direction of arrow 121.

Next, the sterilization cap portion 122 which can be attached to the mirror body portion 80 will be described with reference to FIG.
However, since the attachment structure and shape to the mirror body portion 80 are almost the same as the cap portion 73 shown in the fifth embodiment,
Description of that part is omitted. The sterilization cap part 122 corresponding to the cap part 73 shown in the fifth embodiment has a fifth part.
The deformable portion 72, which is deformable as in the above embodiment, is attached.

An attachment hole 123 is provided at a side surface of the sterilization cap portion 122 and at a position facing the variable magnification knob attachment hole 111 provided in the mirror body portion 80. The size of the mounting hole 123 is large enough for the knob 112 to pass through. The sterilization cap portion 122 is provided with an objective window 124 that does not block the light flux passing through the objective lens provided in the mirror body portion 80, as in the above-described embodiment.

With the above-described structure, the microscope 79 is equipped with the sterilized drape 71 including the sterilized cap portion 122 that has been sterilized in advance and the knob 112, and when the microscope 79 is used in a sterilized state, the fifth embodiment is performed. The sterilization drape 71 is attached similarly to the form, and the sterilization cap part 122 is fixed to the mirror body part 80.

Furthermore, the knob 112, which has been sterilized in advance through the mounting hole 123 provided in the sterilization cap portion 122, is attached to the variable magnification knob mounting hole 1 provided in the body portion 80.
The notch 114 and the claw 118 provided on the knob 112 are aligned with respect to 11 and attached. At this time, the protrusion 119 provided on the claw 118 comes into contact with the cutout 114, thereby causing the claw 118 to move.
Elastically deforms in the direction of arrow 121.

Further, when the knob 112 is pushed into the variable-magnification knob mounting hole 111 and the protrusion 119 is located at the step 115 provided in the notch 114, the elastic force of the pawl 118 causes the pawl 118 to move. The portion 118 is deformed in the direction opposite to the arrow 121, and the step 115 and the protrusion 119 mesh with each other. By this action, the mirror body portion 80
The knob 112 is fixed. As a result, the microscope 79 allows the sterilization cap portion 1 to be exposed without exposing the unclean portion.
Covered by the sterile drape 71 and knob 112, including 22.

During the operation, the operator holds the knob 112 and changes the rotation axis O so as to change the observation magnification.
_When rotated around _{10, the} notch 114 provided on the cylindrical tube 113 and the claw 1 provided on the knob 112
Since 18 has the same shape, rotation of the knob 112 is achieved by being directly transmitted to the cylindrical tube 113. Further, the step 115 provided on the cutout 114 and the protrusion 11 provided on the claw 118.
9 is engaged, so even if the operator
Even if 2 is pulled in the axial direction of the rotation axis O ₁₀ with respect to the mirror body portion 80, the knob 112 does not deviate from the mirror body portion 80.

When the sterile drape 71 including the sterile cap portion 122 and the knob 112 are removed from the microscope 79 after the operation, the operator or the operator attaches the button portion 120 provided on the knob 112 to the knob 112. The button portion 120 elastically deforms the claw portion 118 in the direction of the arrow 121 by pushing in by pushing. Next, the button part 1
With the elastic member 20 deforming the claw 118, the knob 112 is pulled out in the axial direction of the rotation axis O ₁₀ with respect to the mirror body 80, so that the mirror body 80 and the knob 112 are separated again. You can

The sterilization cap portion 122 is attached to the mirror body portion 8.
Since the knob 112 that interferes when it is attached to the 0 is removably attached, the sterilization cap portion 122 is very easily attached, and the knob 112 can be repeatedly sterilized. By doing so, the sterilization cap portion 122 can be made small and lightweight, and the original performance of the surgical microscope can be sufficiently exhibited.

41 and 42 show the tenth embodiment, and the same components as those in the fifth to ninth embodiments are designated by the same reference numerals and the description thereof will be omitted.

FIG. 41 shows the overall construction of this embodiment.
The side surface of the mirror body portion 80 has a rotation axis O _{11 with} respect to the mirror body portion 80.
A variable magnification knob 125 is provided which is capable of changing an observation magnification by rotating a variable magnification lens (not shown) built in the mirror body portion 80 by rotating the lens body 80 around. The scaling knob 125 pushes the scaling knob 125 in the axial direction of the rotation axis O ₁₁ with respect to the mirror section 80, so that the scaling knob 125 projects from the outer surface of the mirror section 80. The outer surface is flush with the outer surface.

Next, referring to FIG. 42, the scaling knob 125 will be described.
The lock portion 1 is provided inside the mirror body portion 80.
26 are provided. The lock portion 126 is rotatably attached about a rotation axis O ₁₂ which is perpendicular to the paper surface. The lock portion 126 is provided with an action arm 127. One end of a coil spring 128 is rotatably fixed to the lock portion 126 about a rotation axis O ₁₂ which is perpendicular to the paper surface, and the other end is fixed to a part of the mirror body portion 80 so that the coil spring 128 is always contracted. Force is acting on.

A spring receiving portion 129 is attached to the variable power knob 125.
The spring receiving portion 129 is provided with a compression spring 130.
Is supported at one end, and the other end is fixed to a part of the mirror body portion 80. The side wall of the spring receiving portion 129 is provided with a pawl receiving portion 131 formed of an engaging hole, and the lock portion 126 is provided.
A claw portion 132 that can be engaged with and disengaged from the claw receiving portion 131 is provided in the. Reference numeral 133 is a stopper that restricts the rotation of the lock portion 126 around the rotation axis O ₁₂ . Thirteen
Reference numeral 4 denotes a sterilization cap having the same shape as the variable power knob 125 and capable of being fitted to the variable power knob 125 and capable of repeated sterilization.

With the above configuration, the microscope 79 is equipped with the sterile drape 71 including the sterile cap portion 122 that has been sterilized in advance and the sterile cap 134.
When using as a sterilized state, the variable magnification knob 12 in advance
5 is pushed in the axial direction of the rotation axis O ₁₁ while compressing the compression spring 130, the spring receiving portion 129 pushes the action arm 127 provided on the lock portion 126, and the lock portion 126 is moved to the rotation axis O _12. Rotate around in the direction of arrow 135.

Then, since the rotating shaft O ₁₃ of the coil spring 128 exceeds the inflection point of the coil spring 128, the pulling action of the coil spring 128 causes the lock portion 126 to move around the rotating shaft O ₁₂ by the coil spring 128 so that the arrow 13 is formed.
It can be rotated in 5 directions. At this time, the lock portion 12
6 is hooked on the pawl receiving portion 131 provided on the spring receiving portion 129, the claw portion 132 provided on FIG.
As shown in FIG. 2B, the variable magnification knob 125 is fixed on the same surface as the outer surface of the mirror body portion 80.

Next, as in the ninth embodiment, the sterilization drape 71 including the sterilization cap part 122 is mounted, and the sterilization cap part 122 is fixed to the mirror body part 80. Further, when the scaling knob 125 is pushed in the axial direction of the rotary shaft O ₁₀ again, the pawl portion 132 is pushed by the pawl receiving portion 131, and the rotary shaft O _{13 of the} coil spring 128 again exceeds the inflection point. The pulling force of the coil spring 128 causes the lock portion 126 to rotate about the rotation axis O _{12 in the} direction opposite to the arrow 135 until it abuts on the stopper 133. Therefore, the claw portion 132 and the claw receiving portion 131 are not caught, and due to the returning action of the compression spring 130, the scaling knob 125 is again moved to the outer surface of the mirror body portion 80 as shown in FIG. Project to. Next, the sterilization cap 1 that has been previously sterilized and disinfected on the scaling knob 125 is used.
By mounting 34, the entire microscope 79 can be covered with a sterilized material.

After the operation, the sterile drape 71 including the sterile cap portion 122 and the sterile cap 134 for the variable power knob.
When removing, it is possible to remove it in the reverse order of mounting.

Therefore, when the sterilization cap portion 122 is attached to the mirror body portion 80, the variable magnification knob 1 which becomes an obstacle.
Since the protrusion of 25 can be eliminated, the sterilization cap portion 122 can be mounted very easily, and the sterilization cap portion 122 can be made small and lightweight, so that the original performance of the microscope 79 can be sufficiently exhibited. can do. Furthermore, since the scaling knob 125 can only be moved forward and backward with respect to the mirror body section 80 and cannot be separated, there is no risk that an operator or an operator accidentally loses the scaling knob 125.

According to the above embodiment, the following constitution can be obtained.

(Supplementary Note 1) A surgical instrument comprising a mirror body, a sterilizable cap capable of covering the entire mirror body, and a holding portion which is provided on the mirror body and holds the cap. microscope.

(Supplementary Note 2) Supplementary note 1 in which one of the holding portion of the mirror body and the mounting portion of the cap is a convex portion and the other is a concave portion.
The surgical microscope described.

(Supplementary Note 3) The surgical microscope according to Supplementary Note 1, wherein the convex portion of the holding portion is an operation knob for operating the mirror body.

(Supplementary Note 4) The surgical microscope according to Supplementary Note 1, wherein the holding portion is constructed by providing an electromagnetic member on one side of the mirror body and the cap and a metal member on the other side.

(Supplementary Note 5) The surgical microscope according to Supplementary Note 4, wherein the electromagnetic member is an electromagnetic coil.

(Supplementary Note 6) The surgical microscope according to Supplementary Note 4, wherein the electromagnetic member is a permanent magnet.

(Supplementary Note 7) The surgical microscope according to Supplementary Note 1, wherein the cap is made of an elastic material that can be autoclaved.

(Supplementary Note 8) The surgical microscope according to Supplementary Note 1, wherein the cap covering the movable portion of the mirror body is movable.

(Supplementary Note 9) The surgical microscope according to Supplementary Note 1, wherein the cap is divided into two parts.

(Supplementary Note 10) The surgical microscope according to Supplementary Note 1, wherein the cap corresponds to the movable portion of the mirror body and is provided with a flexible portion which is partially deformable.

(Supplementary Note 11) The surgical microscope according to Supplementary Note 1, wherein a flexible material is inserted into the cap.

(Supplementary Note 12) The surgical microscope according to Supplementary Note 10, wherein the deformable flexible portion is a bellows.

(Supplementary note 13) The surgical microscope according to supplementary note 11, wherein the flexible material is a metal plate.

(Supplementary Note 14) The surgical microscope according to Supplementary Note 1, wherein the cap is formed of a hard material and a partially elastic material that can be autoclaved.

(Supplementary Note 15) The surgical microscope according to Supplementary Note 1, wherein a leaf spring is inserted in the cap.

(Supplementary Note 16) The surgical microscope according to Supplementary Note 1, wherein a shape memory alloy is inserted in the cap.

(Supplementary Note 17) The surgical microscope according to Supplementary Note 7, wherein the elastic material that can be sterilized by autoclave is made of rubber.

(Supplementary Note 18) The surgical microscope according to Supplementary Note 1, wherein the cap has a slit.

(Supplementary Note 19) In a sterile drape for keeping an outer surface of a surgical microscope in a sterilized state by covering the surgical microscope, a deformable member is arranged in the movable portion of the surgical microscope, A sterilized drape characterized in that a non-deformable member that can be fixed to a surgical microscope is arranged in the other parts.

(Supplementary Note 20) The sterilized drape according to Supplementary Note 19, wherein the deformable member is arranged in the opening of the sterilization drape and the diameter of the opening can be enlarged or reduced.

(Supplementary Note 21) The sterile drape according to Supplementary Note 19, wherein the deformable member and the non-deformable member are formed separately.

(Supplementary note 22) The sterile drape according to supplementary note 21, further comprising means for accommodating or breaking the deformable member in the non-deformable member.

(Supplementary Note 23) The sterile drape according to Supplementary Note 19 or 21, wherein the non-deformable member has means for holding a surgical instrument.

(Supplementary note 24) The supplementary note 22 characterized in that the deformable member has a simple tubular shape, and is housed in each annular section in an annular housing member having the tubular cross section. Sterile dope.

(Supplementary Note 25) A surgical microscope characterized in that it has means for eliminating the protrusion of the operation knob which becomes an obstacle when fixing the non-deformable member.

(Supplementary note 26) The surgical microscope according to supplementary note 25, characterized in that the means for eliminating the protrusion is constituted by a mechanism for attaching and detaching an operating knob.

(Supplementary note 27) The surgical microscope according to supplementary note 25, characterized in that the means for eliminating the protrusion comprises an advancing / retreating mechanism of an operating knob.

According to Supplementary Note 19, a deformable member is arranged in a movable portion of the surgical microscope with a sterile drape to be covered with the surgical microscope, and the portion other than the movable portion can be fixed to the surgical microscope, and By placing the non-deformable member, the drape covers the entire surgical microscope, with the non-deformable member being fixed to the opposing surgical microscope section.

According to Supplementary Note 20, the deformable member is arranged at the opening of the sterile drape and the opening diameter thereof can be enlarged or reduced. The opening diameter increases when covered, and then decreases after covering.

According to Supplementary Note 21, by disposing the deformable member and the non-deformable member separately, the non-deformable member is covered with the deformable member only after the entire surgical microscope is covered. It is fixed to the surgical microscope portion via the deformable member.

According to Supplementary Note 22, the non-deformable member has means for accommodating or breaking the deformable member, so that when the non-deformable member is fixed through the deformable member, A part of the deformable member is stored in the non-deformable member, or a part of the deformable member is broken by the non-deformable member.

According to Supplementary Note 23, the non-deformable member has means for holding a surgical instrument sterilized by another method, so that the non-deformable member is fixed to the opposing surgical microscope portion. , A non-deformable member holds an otherwise sterilized surgical tool.

According to appendix 24, the deformable member has a simple tubular shape and is housed in each annular cross-section of the tubular storage member having the tubular cross section, so that the annular storage member is operated. After passing through the operating microscope, the deformable members are sequentially extended from the annular storage member to cover the operating microscope.

According to Supplementary Note 25, since the surgical microscope has means for eliminating the protrusion of the operation knob that interferes when fixing the non-deformable member, the surgical microscope can be operated before the non-deformable member is fixed. Eliminate the protrusion of the control knob on the microscope.

According to Supplementary Note 26, since the means for eliminating the operating knob of the surgical microscope is a mechanism for attaching and detaching the operating knob, the operating knob is removed before fixing the non-deformable member.

According to Supplementary Note 27, since the means for eliminating the operating knob of the surgical microscope is a mechanism for moving the operating knob forward and backward, the operating knob can be pushed and dented before fixing the non-deformable member.

According to Appendix 19, the deformable member does not impair the kinetic performance of the conventional surgical microscope, and the non-deformable member has the same appearance as the surgical microscope. By eliminating the slack and fixing the non-deformable member to the surgical microscope, the slippage that occurred when operating the conventional surgical microscope was eliminated, thereby solving the conventional problems and improving the surgical efficiency. Improved.

According to Supplementary Note 20, since the opening of the sterile drape can be enlarged and reduced, the mounting performance deteriorated by disposing the non-deformable member can be improved again.

According to Supplementary Note 21, since the deformable member and the non-deformable member are separately provided, the conventional mounting performance can be obtained.

According to appendix 22, extra slack can be further eliminated by having a means for accommodating or breaking the deformable member in the non-deformable member. Further, even if the deformable member has a simple shape, extra slack can be eliminated, so that the mountability of the deformable member can be improved and the cost can be reduced. Further, when the means for breaking is provided, unlike the conventional case, careless force is not applied to the surgical microscope itself, so that the number of failures is reduced.

According to appendix 23, the non-deformable member can be sterilized by another method by utilizing the fact that the non-deformable member is securely fixed to the surgical microscope and having the means for holding the surgical instrument in that portion. The surgical instrument can be fixed to the surgical microscope without making it dirty.

According to appendix 24, since the deformable member has a simple tubular shape and is housed in the annular housing member having the above-mentioned tubular cross section for each cross section, the outer side or the inner side when mounted. It is easy to distinguish between the two, and it is very easy to do because the mounting itself simply passes the annular storage member through the surgical microscope.

According to Supplementary Notes 25 to 27, since the non-deformable member does not have a protrusion that interferes when it is attached to the surgical microscope, it is easy to attach and the size of the non-deformable member can be made small and lightweight. The original performance of an operating microscope can be fully demonstrated.

[0189] Generally, in a so-called microsurgery performed under a surgical microscope, a drape is used to prevent infection of a patient, or a surgical microscope main body is sterilized to perform an operation. As a method for sterilizing the main body of a surgical microscope, a sterilization method is generally known in which a sterilized site is wrapped in a bag, taped and sealed, and ethylene oxide gas escaping from the inside of the drug solution container inserted into the bag into the bag is generally known. Has been. Japanese Patent Publication No. 3-17493 discloses a method of performing sterilization by a sterilizing device provided in a surgical microscope storage box formed on the side wall of an operating room.

However, when the drape is used, the drape is bulged near the movable part of the mirror support device or the operation handle is gripped in the mirror positioning operation which requires delicate accuracy during the operation. Currently, the hand is slipping due to drapes, which hinders its operability.

Also, since ethylene oxide gas is originally used at 40 ° C. to 60 ° C. in order to obtain a sufficient sterilizing effect, and it is necessary to raise the atmospheric pressure to reach all the intended sites, the chemical solution container The sterilization method used at room temperature and under normal pressure may cause incomplete sterilization action and cannot be safely used for surgery. In addition, this method needs to be left for a long time after the sterilization work to remove the residual ethylene oxide, which is toxic to the human body, and it is not possible to cope with a large number of operations.

Next, the sterilizer provided in the storage box formed on the side wall of the operating room requires special work in the operating room, and the positional relationship between the operating microscope and the bed is fixed. Therefore, it will not be possible to support all surgical methods. Further, since the operating microscope cannot be moved, one operating microscope cannot be used in a plurality of operating rooms.
Furthermore, in recent years, surgical microscopes have made technological progress at a remarkable speed, and the replacement cycle has become shorter, but a large amount of work is required each time a replacement is made, and the cost is high.
There is a problem that surgery cannot be performed during the construction period.

Therefore, we have developed a surgical microscope that can be sterilized reliably in a short period of time and can be used safely with respect to infections, and that it can be placed anywhere and is easy to use.

FIG. 43 is a sectional view showing the overall construction of the surgical microscope of the first disclosed example, and FIG. 44 is a view showing changes in pressure inside the sterilization chamber during the sterilization process. As shown in FIG. 43, the gantry 141 is provided with a caster 142 for movement on the bottom thereof, and a two-step pantograph arm 143 is attached to the upper end of the gantry 141 so as to be rotatable about an axis Oa. The two-stage pantograph arm 143 has a balance mechanism, and a mirror arm 144 is attached to the tip of the arm so as to be rotatable about an axis Ob. The body arm 144 is provided with a lid 145, and the body 146 is provided on the lower side with an axis Oc.
It is attached so as to be rotatable around.

In addition, inside the pedestal 141, temperature, humidity,
A sterilization chamber 148 provided with a sensor 147 for measuring atmospheric pressure, and a warm water layer 14 arranged so as to surround the sterilization chamber 148.
9 is provided, and the warm water layer 149 is an electric heater 1 for heating the liquid 150 filling the inside of the warm water layer 149.
51 are provided. In addition, a packing 152 is provided at the upper part of the sterilization chamber 148, and an opening 153 having a shape fitting with the lid 145 is provided, and the lid 1 is provided near the opening 153.
A stopper 154 for fixing 45 is provided.

Further, the sterilization chamber 148 has valves 155a, 15
Pipes 156a and 156b provided with 5b and pipe 156
c is movably connected to the pipe, and a pipe 156a is connected to a valve 155a, a pipe 156d is connected to a portion located on the sterilization chamber 148 side, and the pipe 156d is provided with a valve 155d. The pipe 155a is opened to the outside of the pedestal 141, and the pipes 156b, 156c and 156d are fluidly connected to an ethylene oxide (hereinafter referred to as EOG) gas cylinder 157, a humidifier 158, and a vacuum device 159, respectively. Further, the vacuum device 159 includes a pipe 156e that is open to the outside of the gantry 141. Valve 155
a, 155b, 155d, sensor 147, electric heater 1
51, the humidifying device 158, and the vacuum device 159 are electrically connected to the control unit 160.

Next, the operation of the surgical microscope constructed as described above will be described. First, sterilization preparation will be described. Normally, the mirror body 1 at the position shown by the broken line in FIG.
46 is introduced into the sterilization chamber 148 by the operation of the two-stage pantograph arm 13, the lid 145 is fitted into the opening 153, and the stopper 154 fixes the lid 145 and the packing 152 in close contact with each other to seal the sterilization chamber 148. To do.

Next, the operation and action of the sterilizer controlled by the control unit 160 over time will be described with reference to FIG. Before t0, valves 155a, 155b, 1
55d are all closed, vacuum device 159, heater 151,
All of the humidifiers 158 are in a so-called initial state in which they are all off. The valve 155d is opened at t0, and the vacuum device 159 is opened.
When turned on, the gas in the sterilization chamber 148 is connected to the pipe 155e.
Is forcibly released from the inside to the outside and the inside of the sterilization chamber 148 becomes a vacuum state by t1. Next, at t2, the vacuum device 159 is turned off.
F, closing valve 155d and opening valve 155b,
EOG gas is introduced into the sterilization chamber 148 from the EOG gas cylinder 157. Since the pressure inside the gas cylinder 157 is high, the EOG gas is continuously introduced into the sterilization chamber 148 even if the pressure inside the sterilization chamber 148 becomes higher than the atmospheric pressure.

At t2, the electric heater 151 is turned on at the same time, the liquid 150 in the warm water layer 149 is heated, and the heat is transmitted to raise the temperature inside the sterilization chamber 148 almost uniformly. Further, at t2, the humidifier 158 is also turned on to generate steam and increase the humidity in the sterilization chamber 148. At t3 when the atmospheric pressure sensed by the sensor 147 reaches the set value p, the valve 155b is closed, the introduction of EOG gas into the sterilization chamber 148 is stopped, and the atmospheric pressure is made constant. Further, before and after t3, the temperature and humidity inside the sterilization chamber 148 detected by the sensor 147 also reach the set values q and r, respectively, and the electric heater 151 and the humidifying device 158 are turned off.

Further, when the temperature and humidity in the sterilization chamber 148 are lowered to the second set values q2 and r2 which are slightly lower than the set values q and r, the electric heater 151 and the humidifier 158 are turned on again. Even after that, set values q and q2, r and r2
In the sterilization chamber 148, the ON / OFF cycle is repeated between t3 and t4 after the time δt required for the set sterilization elapses.
Keep the temperature and humidity inside almost constant. During the period from t3 to t4, the EOG gas spreads to every corner in the sterilization chamber 148 with moderate pressure, and the temperature and pressure suitable for sterilization are maintained, so that the mirror body 146 is sufficiently sterilized. Sterilized t
In step 4, the electric heater 151 and the humidifier 158 are turned off, and the temperature in the sterilization chamber 8 is naturally cooled to room temperature. At t5, the sensor 147 detects that the temperature in the sterilization chamber 148 has reached room temperature, opens the valve 155d, turns on the vacuum device 159 to forcibly discharge all the gas in the sterilization chamber 148 to the outside of the pipe 156e, and at t6. The sensor 147 detects that the inside of the sterilization chamber 148 is in a vacuum state, closes the valve 155d, and closes the valve 155a.
Open up. Then, since the atmospheric pressure in the sterilization chamber 148 is lower than that of the outside air, the outside air is naturally aspirated into the sterilization chamber 148. However, at this point, since ethylene oxide still remains on the inner wall of the sterilization chamber 148 and the inside or the outer surface of the mirror body 146, the forced discharge and the natural aeration are repeated a set number of times for a set time, and the remaining is left. Is removed to reach t7, and the entire sterilization process is completed.

Therefore, after exhausting all the air in the sterilization chamber 147, the sterilization chamber 147 is operated with the EOG gas at an appropriate pressure.
Further, since the temperature and humidity suitable for sterilization are maintained inside the sterilization chamber 147, the interior of the mirror body 146 can be surely sterilized. Further, since aeration is performed as it is after sterilization, there is no residual ethylene oxide, and the surgical microscope can be used immediately. Further, since the casters 142 are provided on the bottom of the gantry 141, the surgical microscope can be moved, and the storage place is free and practically convenient.

FIG. 45 is a cross-sectional view showing the overall configuration of the surgical microscope of the second disclosed example, and the disclosed example is the same as the first disclosed example in the surgical microscope including the mirror body supporting arms of any structure. This is a sterilization device for the purpose of enabling the sterilization method described above.

In FIG. 45, the same components as those of the first disclosed example are designated by the same reference numerals and the description thereof will be omitted. Stand 141
Is composed of a pillar 161 and a base 162 supporting the pillar 161. The base 162 has an EOG gas cylinder 15
7, a humidifying device 158, a vacuum device 159, and a control unit 160 are built in, and an arm device 163 is attached to the upper end of the support column 161 so as to be rotatable about an axis Od.
At the tip of the arm device 163, a mirror arm 144 is provided with an axis O.
It is attached so as to be rotatable around e.

The column 161 has a two-stage Pandagraph arm 1
64 is fixed, and the sterilization box 165 containing the sterilization chamber 148, the warm water layer 149, and the electric heater 151 is fixed to the other end of the two-stage panda graph arm 164. Valve 155d
The hose 166d provided with is connected to the pipe 155d, and the other end is connected to the vacuum device 159. One end of the hose 166c is connected to the pipe 156c, and the other end is connected to the humidifier 158. A hose 166b equipped with a valve 155b is connected to the pipe 156b, and the other end is an EOG gas cylinder 157.
It is connected to the. The cables 167, 168, 169 connecting the valve 155a, the electric heater 151, the sensor 147 and the control unit 160 are built in the two-stage pantograph arm 164.

Next, the operation of the surgical microscope constructed as described above will be described. The sterilization box 165 is moved to the position as shown in FIG. 45 by the operation of the two-step pantograph arm 164 to introduce the mirror body 146 into the sterilization chamber 148, and the sterilization chamber 148 is sealed. Hoses 166b, 16
The fluid can be moved between the sterilization chamber 148 and the EOG gas cylinder 157, the humidifying device 158, and the vacuum device 159 by 6c and 166d, and the same sterilization work as the procedure described in the first disclosed example is performed.

Therefore, in order to have various functions,
Also in the surgical microscopes having various types of mirror support arms, the same sterilization as that of the first disclosed example can be performed by providing the mount 141 with the arm device 163 that supports the sterilization box 165 in this way. it can.

FIG. 46 is a cross-sectional view showing the overall structure of the surgical microscope of the third disclosed example. In the disclosed example, the sterilizer is detachable from the mirror support device in the second disclosed example.
The purpose is to expand system selectivity and meet user needs.

In FIG. 46, the same components as those of the first and second disclosed examples are designated by the same reference numerals and the description thereof will be omitted. The gantry 170 includes a support 171 and a base 1 that supports the support 171.
And 72. Hook 17 on the post 171
3, the square hole 174, the screw portion 175 are provided, and the base 17
A concave portion 176 is provided on the upper surface of 2.

EOG gas cylinder 157, humidifier 15
8. The sterilization unit 177 containing the vacuum device 159, the vacuum device 159, and the control unit 160 is provided with an elongated hole 178 that is caught by the hook 173. A fixing ring 180 having a square bar portion 179 fitted into the square hole 174 and a female screw meshing with the screw portion 175 is provided at one end of the two-step pantograph arm 164, and a sterilization box 165 is fixed at the other end. ing.

Next, the procedure for attaching the sterilizer to the support column 171 will be described. The long hole 178 is aligned with the hook 173, and the sterilization unit 177 is dropped into the recess 176 of the base 172. Next, the square rod portion 179 is inserted into the square hole 174, the fixing ring 180 is screwed into the screw portion 175, and the two-stage pantograph arm 165 is fixed to the support column 171. Removal is the reverse of this procedure.

Therefore, the sterilizer can be freely attached and detached,
For example, in the operating room that used drapes in the past, if you replace a successor doctor who does not like drapes, you can switch to the method of sterilization by adding a sterilizer later, and the system selectivity expands and user needs Can correspond to.

According to the first to third disclosed examples, since the mirror body can be surely sterilized, it can be used without anxiety about infection, and since aeration is performed in a short time, the surgical microscope can be used immediately. it can. Furthermore, since the surgical microscope can be moved, it can be placed anywhere and is practically easy to use.

According to the surgical microscope described above, the following structure is obtained.

(Supplementary Note 28) A surgical microscope having a mirror support device, wherein the support device is equipped with a sterilization device.

(Supplementary Note 29) The surgical microscope according to Supplementary Note 28, wherein the gas pressure in the sterilization chamber of the sterilizer is variable.

(Supplementary note 30) The surgical microscope according to supplementary note 28, wherein the temperature of the gas in the sterilization chamber of the sterilizer is variable.

(Supplementary note 31) The surgical microscope according to supplementary note 28, wherein the gas used for sterilization in the sterilizer is ethylene oxide gas.

(Supplementary Note 32) The supplementary note 2 characterized in that the gas used for sterilization in the sterilization apparatus is formalin gas.
8. The surgical microscope according to 8.

(Supplementary note 33) The surgical microscope according to supplementary note 28, characterized in that the sterilization device is built in or integrally provided in a column portion of the support device.

(Supplementary note 34) The surgical microscope according to supplementary note 28, wherein the supporting device has an arm having a structure and arrangement for guiding the mirror body to the sterilization chamber.

(Supplementary note 35) The supplementary note 34, characterized in that the arm has at least two pantograph structures.
The surgical microscope described.

(Supplementary note 36) The surgical microscope according to supplementary note 28, characterized in that the base portion for supporting the supporting device is provided with a cast for movement.

(Supplementary note 37) In a surgical microscope having a mirror body support device, a second arm fixed to a column portion of the support device is provided in addition to the first arm for supporting the body body.
A surgical microscope comprising a sterilizer at the tip of the second arm.

(Supplementary Note 38) The sterilizer is divided into two parts, a sterilization chamber part provided at the tip of the second arm and a sterilizer main body fixed to a supporting device, and exchanges fluid with each other by at least one hose. 38. The surgical microscope according to appendix 37, wherein:

(Supplementary note 39) The surgical microscope according to supplementary note 37, wherein the sterilization device is detachably attached to the support device.

[0226]

As described above, according to the present invention, the entire body can be easily sterilized, and the cap can be easily attached to the body. Can be eliminated. Also, the overall shape does not change depending on the operator who attaches the cap to the mirror body, and the surgical microscope can always be used with the same shape, which hinders the operability of the surgical microscope and the operator's visual field. The effect is that there is no risk of such attachment.

[Brief description of drawings]

FIG. 1 is a perspective view of a mirror body showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing the cap of the same embodiment.

FIG. 3 is a side view showing a holding portion of the mirror body of the embodiment.

FIG. 4 is a vertical sectional side view of a mounting portion of the cap of the same embodiment.

FIG. 5 is a perspective view showing the cap of the same embodiment.

FIG. 6 is an operation explanatory view of a holding portion and a mounting portion of the same embodiment.

FIG. 7 is an operation explanatory view of the holding portion and the mounting portion of the same embodiment.

FIG. 8 is a perspective view of a mirror body showing a second embodiment of the present invention.

FIG. 9 is a perspective view of the cap of the same embodiment.

FIG. 10 is a vertical sectional side view showing the relationship between the diopter adjustment ring and the diopter adjustment cap of the same embodiment.

FIG. 11 is a vertical cross-sectional side view showing the relationship between the interpupillary distance adjustment knob and the interpupillary distance adjustment cap of the same embodiment.

FIG. 12 is a cross-sectional view showing a modified example of the same embodiment.

FIG. 13 is a perspective view of a mirror body showing a third embodiment of the present invention.

FIG. 14 is a perspective view of the cap of the same embodiment.

FIG. 15 is a perspective view of a mirror body showing a fourth embodiment of the present invention.

FIG. 16 is a perspective view of the cap of the same embodiment.

FIG. 17 is a cross-sectional view showing the relationship between the mirror body and the cap of the same embodiment.

FIG. 18 is a perspective view of the cover portion of the same embodiment.

FIG. 19 is a perspective view showing a part of the cover portion of the same embodiment.

FIG. 20 is a cross-sectional view of the cover portion of the same embodiment.

FIG. 21 is a perspective view of a sterile drape showing a fifth embodiment of the present invention.

FIG. 22 is a perspective view of the surgical microscope according to the same embodiment.

FIG. 23 is a perspective view showing a part of the sterile drape of the same embodiment.

FIG. 24 is a perspective view of a sterile drape showing a sixth embodiment of the present invention.

FIG. 25 is a perspective view showing the sterilization cap of the same embodiment.

FIG. 26 is a vertical sectional side view of the sterilization cap of the embodiment.

FIG. 27 is a vertical sectional side view of the sterilization cap of the embodiment.

FIG. 28 is a perspective view of the mirror body portion and the eyepiece tube portion of the same embodiment.

FIG. 29 is a vertical sectional side view of the eyepiece lens according to the same embodiment.

FIG. 30 is a perspective view of the surgical microscope of the embodiment with a sterile drape attached thereto.

FIG. 31 is an operation explanatory view of the same embodiment.

FIG. 32 is an operation explanatory view of the same embodiment.

FIG. 33 is a sectional view of the cap of the same embodiment in which a sterile drape is stored.

FIG. 34 is a perspective view of a cap and a surgical instrument showing a seventh embodiment of the present invention.

FIG. 35 is a perspective view of a sterile drape showing an eighth embodiment of the present invention.

FIG. 36 is a sectional view of the sterilized drape according to the embodiment in a stored state.

FIG. 37 is a perspective view showing a mirror body of a ninth embodiment of the present invention.

FIG. 38 is a perspective view showing a mirror body of the same embodiment.

FIG. 39 is a vertical sectional side view of the knob of the same embodiment.

FIG. 40 is a perspective view of the cap according to the same embodiment.

FIG. 41 is a perspective view of a mirror body portion showing a tenth embodiment of the present invention.

FIG. 42 is a vertical sectional side view of the variable power knob of the same embodiment.

FIG. 43 is a vertical sectional side view of the surgical microscope according to the first disclosed example.

FIG. 44 is a view showing a pressure change inside the sterilization chamber of the disclosed example.

FIG. 45 is a vertical sectional side view of the surgical microscope according to the second disclosed example.

FIG. 46 is a vertical sectional side view of the surgical microscope according to the third disclosed example.

[Explanation of symbols]

1 ... Mirror body, 2 ... Main body part, 3 ... Lens barrel part, 4 ... Objective lens,
5 ... eyepiece, 7 ... holding part, 8 ... cap, 9 ... mounting part.

[Procedure amendment]

[Submission date] December 8, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0138

[Correction method] Change

[Correction content]

Next, referring to FIG. 42, the scaling knob 125 will be described.
The lock portion 1 is provided inside the mirror body portion 80.
26 are provided. The lock portion 126 is rotatably attached about a rotation axis O ₁₂ perpendicular to the plane of the drawing. The lock portion 126 is provided with an action arm 127. One end of a coil spring 128 is rotatably fixed to the lock portion 126 about a rotation axis O ₁₃ perpendicular to the plane of the drawing, and the other end is fixed to a part of the mirror body portion 80 so that the coil spring 128 is always contracted. Force is acting on.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] Figure 15

[Correction method] Change

[Correction content]

FIG. 15

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Toru Shinmura 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Koji Yasunaga 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Kazuo Manju 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Masaaki Ueda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Asahi Ishikawa 2-43-2, Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Hiroshi Fujiwara 2-43-2, Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Industry Co., Ltd. (72) Inventor Masahisa Kaneda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Gaku Kogyo Co., Ltd. (72) Inventor Junichi Nozawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Kenichi Takeuchi 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industry Co., Ltd.

Claims (1)

[Claims] 1. A surgical operation comprising: a mirror body, a sterilizable cap that can cover the whole or a part of the mirror body, and a holding portion that is provided on the mirror body and holds the cap. Microscope.